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Mnenie [13.5K]
3 years ago
9

How to add and subtract scientific notation

Mathematics
1 answer:
ch4aika [34]3 years ago
3 0
Once the numbers have the same base and exponents, we can add or subtract their coefficients.Here are the steps to adding or subtracting numbers in scientific notation:Determine the number by which to increase the smaller exponent by so it is to the equal larger exponent
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On a map, a distance of 2 cm represents 15 km. What is the distance (in km) between two cities that are 11 cm apart on the map?
GenaCL600 [577]

Answer:

82.5 km

Step-by-step explanation:

Given:

\frac{2cm}{15km} =\frac{11cm}{?km}

Cross-multiply.

2x = 11(15)

Divide both sides by 2 and solve for x.

x = 82.5 km

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3 years ago
A necklace is made of 12 red beads and 18 orange beads. How many red beads would be needed to make the same necklace with 90 ora
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PLEASE HELP ME WILL GIVE BRAINLIEST TO CORRECT ANSWER
alex41 [277]

common difference, d = -3

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An arithmetic sequence f(n) = f1 + d(n - 1)

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Answer:

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A certain type of bacteria reproduces so that after x hours there are 15x cells. What single power represents he size relationsh
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Answer:

let's say cells is c and hours are x that means there are 15 cells each hour. the equation for that is c=15x

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then after one day the cells have multiplied over 12 times afterwards. now x equals 24. the equation would look a little like this:

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there are 360 cells now.

Explain in your own words the relationship between x=8 with x=24 in the equation.

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2 years ago
3 (x-k)/w = 4 solve for x
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